6. COMMUNICATION SETTING OF FUNCTION MODULE
IMR02E20-E1
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6.4 Current Transformer (CT) Input Channel of Z-CT Module
Setting the Z-CT module address determines the current transformer (CT) input channel number of
SRZ unit. To each Z-CT module address, the relevant current transformer (CT) input channel is
assigned. Each current transformer (CT) input channel can be calculated from the following equation.
Current transformer (CT) input channel number
[Module address setting
a
]
[Maximum channel number of the function module
b
]
+ [Channel number in a module]
a
When the setting is A to F, it is a decimal number.
b
For the Z-CT module, it is calculated by “12.”
Example: When 16 Z-CT modules are joined
Module address setting
0
1
F
Z-CT module 1
CT9 (CH9)
CT8 (CH8)
CT7 (CH7)
CT12 (CH12)
CT11 (CH11)
CT10 (CH10)
CT1 (CH1)
CT2 (CH2)
CT3 (CH3)
CT4 (CH4)
CT5 (CH5)
CT6 (CH6)
Z-CT module 2
CT9 (CH21)
CT8 (CH20)
CT7 (CH19)
CT12 (CH24)
CT11 (CH23)
CT10 (CH22)
CT1 (CH13)
CT2 (CH14)
CT3 (CH15)
CT4 (CH16)
CT5 (CH17)
CT6 (CH18)
Z-CT module 16
CT9 (CH189)
CT8 (CH188)
CT7 (CH187)
CT12 (CH192)
CT11 (CH191)
CT10 (CH190)
CT1 (CH181)
CT2 (CH182)
CT3 (CH183)
CT4 (CH184)
CT5 (CH185)
CT6 (CH186)
Channel number of current transformer (CT) input channel 7 of Z-CT module 2
1
12 + 7
19
Channel number of current transformer (CT) input channel 6 of Z-CT module 16
15
12 + 6
186
